A Survey on Data Aggregation Techniques for Wireless Sensor Networks

Wireless Sensor Network is an area of growing interest in which recent advancements in the field of sensing, computing and communication attracted various research efforts. Limitations of sensors involve power consumption, computation as well as communication capability. Data aggregation is one practical solution of constraint of power consumption. Various data aggregation schemes have been proposed on the basis of privacy homomorphism. Privacy homomorphism allows direct computation on encrypted data. Thus, data aggregation helps in reducing transmission overhead as well as better security.